How often do I actually need to empty the bin with the auto-empty Tower?

Much less than a standard cordless stick - the Kompressor lever roughly doubles bin capacity by compacting debris, and the Tower dock then extracts that compacted dust automatically into a larger reservoir, with one dock bag typically lasting around six compressed loads before it needs replacing.

Does the Tower dock need special replacement bags?

Yes - it uses LG's proprietary bags, sold in 3-packs for around $20, which is an ongoing cost on top of the vacuum's purchase price, plus separate HEPA and exhaust filter replacements over time.

How much space does the dock take up?

It's sizeable - roughly a 10 by 12 inch footprint and over 3 feet tall - closer to a piece of furniture than a compact wall-mount charging dock, so it needs a dedicated spot in a hallway, closet, or utility area.

How does the battery life compare with two batteries included?

With both included batteries, testing found up to 120 minutes on low power, 80 minutes on medium, or 14 minutes in turbo mode, with a full recharge taking about 3.5 hours - enough for most homes to complete a full cleaning session without a mid-clean recharge on low or medium settings.

Is the mop attachment a true vacuum-and-mop combo?

No - the mop function is a swap-on attachment tool rather than simultaneous vacuum-and-mop, so it's still a two-step process: vacuum first, then attach the mop tool for a separate pass, unlike a dedicated wet-dry combo vacuum.

How does it compare to a Dyson V15 or Samsung Bespoke Jet at a similar price?

Dyson's V15 Detect brings a more polished app experience and laser dirt-detection, while this LG's main advantage is the auto-empty Tower dock and dual-battery runtime - reviewers treat it as a genuine alternative to Dyson and Samsung at this price point rather than a budget option.

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Cordless Stick

~$800

LG CordZero All-in-One Tower Cordless Stick Vacuum with Auto Empty & Kompressor

This is the All-in-One Tower trim of LG's CordZero line - the freestanding dock auto-empties the dustbin every time you dock the wand, which is the feature the plain Kompressor sticks below it don't have. Two quick-release batteries give it a genuine 120-minute runtime, and it keeps the same 210 Air Watts and Kompressor bin-compression as LG's other dual-battery trims. LG actually publishes real numbers here - weight, dimensions, and an 84 dB noise rating - unlike several of its own siblings on this list, which makes it easier to judge against Dyson's and Samsung's auto-empty stick towers. At $799 it's priced to compete directly with those, not with basic cordless sticks.

Approx. price

~$800

Suction

210 AW

Filtration

5-Step Filtration System

Best For

Buyers who want a self-emptying stick vacuum tower without going full robot

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Specifications

210 AW

120 min

Yes

5-Step Filtration System

Bagged

Type

Cordless Stick

Noise Level

84 dB

Dustbin Capacity

33.8 oz

App Control

Yes

Dimensions

10.1 x 11.7 x 39.7 in

Weight

5.95 lbs

Warranty

1 year

Model

A937KGMS

Highlights

Auto-empty Tower dock120-min dual-battery runtimeKompressor bin compression

Pros

✓All-in-One Tower auto-empties the bin every time you dock it, so you handle dust far less often
✓Two quick-release batteries deliver a genuine 120-minute total runtime
✓Kompressor compresses debris for roughly 2.4x more usable capacity between tower empties
✓ThinQ app adds Wi-Fi, battery/filter monitoring, and SmartDiagnosis
✓LG publishes real weight (5.95 lbs), dimensions, and an 84 dB noise figure - most of its own lineup doesn't

Cons

✗At $799 it's the most expensive LG stick in our catalog before the flagship A949KTMS
✗84 dB is on the louder side for a home vacuum
✗Tower dock takes up more permanent floor/wall space than a simple wall mount
✗Still a 1-year parts & labor warranty despite the premium price
✗33.8 oz dust tank is the same size as LG's cheaper single-battery trims, despite the higher price

Owner Insights(28 discussions)

LG's All-in-One Tower with Auto Empty and Kompressor is the flagship of the CordZero line, built around solving the two most annoying parts of owning a cordless stick vacuum: emptying the bin and finding somewhere to store all the attachments. Reviewers from SlashGear and Gear Patrol who tested this Tower configuration came away impressed enough to call the design genuinely different from a standard cordless stick rather than just a dock with extra steps.

In everyday use, the combination of the Kompressor bin-compaction lever and the Tower's automatic dust extraction means owners empty the reservoir far less often than with a typical cordless stick, and testing found suction on medium mode comparable to a traditional corded vacuum, with turbo handling matted pet hair without complaint. The two included batteries and non-trigger latching power button address real ergonomic complaints from rival cordless vacuums. The tradeoffs are the ones you'd expect from a premium all-in-one system: proprietary replacement bags and filters add ongoing cost, the dock is loud during its extraction cycle, and the Tower itself is a large piece of furniture you have to find room for.

This is a buy for larger homes with pets and frequent vacuuming needs where the convenience of rarely touching the bin justifies the price, and for owners tired of hand-fatigue from trigger-only competitors. At $800-999 it competes directly with Dyson's V15 Detect and Samsung's Bespoke Jet; Dyson's edge is a more refined app and laser dirt-detection, while LG's edge is the auto-empty Tower and dual-battery runtime - buyers who don't need auto-emptying can get most of the suction performance from LG's non-Tower Kompressor models for meaningfully less.

Pros

+The All-in-One Tower dock automatically extracts and compacts dust from the vacuum's bin into a large internal reservoir, so daily vacuuming skips the manual bin-dump step almost entirely
+The Kompressor lever manually compresses bin contents to roughly double capacity between empties without a drop in suction, letting one dock bag handle around six compressed loads
+Suction holds up well against traditional corded vacuums on medium mode, and turbo mode specifically handled matted pet hair and entryway debris in testing across tile, hardwood, and carpet
+Comes with a five-tool accessory kit including a mop attachment that reviewers used effectively on kitchen stains, plus tools for hard-to-reach spots between furniture and appliances
+Two included batteries give real all-day flexibility - up to 120 minutes on low power, 80 on medium, or 14 in turbo - with a full recharge in 3.5 hours
+The latching, non-trigger power button removes the hand fatigue that comes with rival cordless sticks requiring the trigger held down the whole time
+The dock includes 3-step filtration, adding a layer of dust containment beyond what the vacuum's onboard filter alone provides

Cons

−At roughly $800-999 depending on configuration, it's a major investment for a stick vacuum, sitting in the same premium tier as Dyson's V15 line and Samsung's Bespoke Jet
−The Tower dock requires LG's proprietary replacement bags (around $20 for a 3-pack), an ongoing cost beyond the upfront price
−HEPA and exhaust filter replacements are an additional recurring expense over the vacuum's lifespan
−Noise was specifically called out as a bit loud, especially during the auto-empty extraction cycle
−The Tower dock itself is large - roughly 10 by 12 inches at the base and over 3 feet tall - and functions more like a piece of furniture than a compact wall dock, making it hard to place inconspicuously
−The mop function is an attachment tool rather than a built-in simultaneous vacuum-and-mop system, so it's still a two-step process compared to a dedicated wet-dry combo machine